Skier, you should be fine with 1.8.0. Nothing really changed from 1.8.0 to 1.8.1 except for the included build. If you downloaded the v1.8.1 XPE image before I fixed the "reported XPE version number" about 4 days ago then you can reinstall the latest 1.8.1 XPE download for RoadHog but it is really not necessary.
Skier, you should be fine with 1.8.0. Nothing really changed from 1.8.0 to 1.8.1 except for the included build. If you downloaded the v1.8.1 XPE image before I fixed the "reported XPE version number" about 4 days ago then you can reinstall the latest 1.8.1 XPE download for RoadHog but it is really not necessary.